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    • This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

    2023 Connecticut 5' Contours (beta)

    Metadata Updated: November 15, 2025

    Source:
     

    1 foot contours were generated for each production block from the final bare earth DEMs using ArcGIS software. Using ArcGIS software, the contours were validated for correct topology, including must not intersect, must not self intersect, and must not have dangles.  Contours are then manually reviewed with the 3D breaklines to ensure complete coverage, correct coding, data integrity and that contours behave correctly around water bodies, water crossings, and elevated features such as overpasses.  The contours are then clipped to individual tiles as creating one dataset for the entire project renders the feature class un-usable. Enclosed contours completely within building footprints were removed from the final contour dataset.

    Coordinate System:

    The data was developed based on a horizontal datum/projection of NAD83 (2011), State Plane Connecticut, U.S. Survey Feet and vertical datum of NAVD88 (GEOID18)

    Use Constraints:

    There are no formal use restrictions. However, users should be aware the conditions may have changed since the data was originally collected, and some areas may no longer accurately reflect current surface features. This data should not be used for critical decision-making without a full understanding of their limitations.

    Access & Use Information

    Public: This dataset is intended for public access and use. Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

    Downloads & Resources

    Dates

    Metadata Created Date June 28, 2025
    Metadata Updated Date November 15, 2025

    Metadata Source

    Harvested from Connecticut Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 28, 2025
    Metadata Updated Date November 15, 2025
    Publisher State of Connecticut
    Maintainer
    Identifier https://www.arcgis.com/home/item.html?id=faceb0fd11cb4b2da4e87fe74e4c900d&sublayer=0
    Data First Published 2024-12-05
    Data Last Modified 2024-12-06
    Category geospatial
    Public Access Level public
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://data.ct.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id cddb7b9b-3646-4058-b93c-d7f53de69a5a
    Harvest Source Id 36c82f29-4f54-495e-a878-2c07320bf10c
    Harvest Source Title Connecticut Data.json
    Homepage URL https://geodata.ct.gov/datasets/ctmaps::2023-connecticut-5-contours-beta
    Metadata Type geospatial
    Old Spatial -73.7368,40.9732,-71.7742,42.0573
    Source Datajson Identifier True
    Source Hash 4dfbb85d9b92726661107731febc271b82cf018cd9c4f51dd5b1ae1cc00d2c1f
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -73.7368, 40.9732, -73.7368, 42.0573, -71.7742, 42.0573, -71.7742, 40.9732, -73.7368, 40.9732}

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